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Hi Steve, my name is Jason.
All Mercurys are cataloged by serial number, can I start by getting that number so I can look up and see exactly what you have.
Next, have you checked for spark output to make sure the engine wasn't lacking it? And that this is in fact a fuel problem?
No problem, there are no time limits here. Lets start with the serial and we'll take it from there.
The easiest way to check for spark is to get a timing light and hook the light up to each plug wire and see if the light flashes or not when the engine runs. If it does, there is good spark, if it does not, there is no spark.
The serial number will be on a sticker on the clamp bracket, starboard side.
Just checking in, any progress?